Simultaneous Nadir Overpasses (SNOs) between HIMAWARI-9 and NOAA-21
TLE Epoch: 2025 3 31.  Predictions up to the next  14.0 days:

     Date     Time(HIMAWARI-9)   HIMAWARI-9 Lat/Lon  NOAA-21 Lat/Lon    Distance(km)  Time Diff(sec)
 04/01/2025   04:00:32   (  -0.02, 140.77) (   0.11, 141.47)   79.12                80
 04/03/2025   16:03:32   (   0.03, 140.79) (   0.05, 140.74)    5.48                80
 04/06/2025   04:04:01   (  -0.04, 140.78) (  -0.22, 139.98)   91.11                80
 04/07/2025   03:47:55   (  -0.04, 140.77) (   0.77, 144.52)  426.49                80
 04/08/2025   16:09:41   (   0.04, 140.77) (   0.37, 139.25)  172.31                80
 04/09/2025   15:48:14   (   0.04, 140.76) (  -0.62, 143.79)  345.73                80
 04/11/2025   04:10:09   (  -0.05, 140.73) (  -0.55, 138.50)  255.15                80
 04/12/2025   03:54:03   (  -0.04, 140.72) (   0.50, 143.02)  263.57                80
 04/13/2025   16:15:49   (   0.04, 140.69) (   0.69, 137.77)  333.65                80
 04/14/2025   15:54:22   (   0.04, 140.68) (  -0.31, 142.31)  185.13                80